Submission #1295054

#	Time	Username	Problem	Language	Result	Execution time	Memory
1295054		zeyd123	Tracks in the Snow (BOI13_tracks)	C++20	2.19 / 100	590 ms	724 KiB

tracks

#include <bits/stdc++.h>
using namespace std;

/*
      ---===ASCII help===---
     '0' -> 48     '9' -> 57
     'A' -> 65     'Z' -> 90
     'a' -> 97     'z' -> 122
*/

const long long mod = 1e9 + 7;

void solve() {
    int n, m; cin >> n >> m;
    set<char> ans;
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            char c; cin >> c;
            if (c != '.') ans.insert(c);
        }
    }
    cout << ans.size() << "\n";
}

int main() {
    int t = 1;
    //cin >> t;
    while (t--) {
        solve();
    }
}

• Subtask 1: 0 / 30
• Subtask 2: 2.1875 / 70